package com.quxiu.system.service.impl;

import java.util.*;
import java.util.stream.Collectors;
import javax.annotation.Resource;
import javax.validation.Validator;

import com.quxiu.common.core.domain.Node;
import com.quxiu.common.core.domain.R;
import com.quxiu.system.api.domain.CommonUser;
import com.quxiu.system.api.model.LoginUser;
import com.quxiu.system.constant.PushDataType;
import com.quxiu.system.constant.PushEvent;
import com.quxiu.system.domain.SysPost;
import com.quxiu.system.domain.SysUserRole;
import com.quxiu.system.mapper.*;
import com.quxiu.system.service.ISysAppService;
import com.quxiu.system.service.ISysPermissionService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import com.quxiu.common.core.constant.UserConstants;
import com.quxiu.common.core.exception.ServiceException;
import com.quxiu.common.core.utils.SpringUtils;
import com.quxiu.common.core.utils.StringUtils;
import com.quxiu.common.core.utils.bean.BeanValidators;
import com.quxiu.common.datascope.annotation.DataScope;
import com.quxiu.common.security.utils.SecurityUtils;
import com.quxiu.system.api.domain.SysRole;
import com.quxiu.system.api.domain.SysUser;
import com.quxiu.system.domain.SysUserPost;
import com.quxiu.system.service.ISysConfigService;
import com.quxiu.system.service.ISysUserService;

/**
 * 用户 业务层处理
 *
 * @author quxiu
 */
@Service
public class SysUserServiceImpl implements ISysUserService {
    private static final Logger log = LoggerFactory.getLogger(SysUserServiceImpl.class);

    @Resource
    private SysUserMapper userMapper;

    @Resource
    private SysRoleMapper roleMapper;

    @Resource
    private SysPostMapper postMapper;

    @Resource
    private SysUserRoleMapper userRoleMapper;

    @Resource
    private SysUserPostMapper userPostMapper;

    @Resource
    private ISysConfigService configService;

    @Resource
    protected Validator validator;

    @Resource
    private SysDeptMapper deptMapper;

    @Resource
    private ISysAppService sysAppService;

    @Autowired
    private ISysPermissionService permissionService;

    /**
     * 根据条件分页查询用户列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectUserList(SysUser user) {
        return userMapper.selectUserList(user);
    }

    /**
     * 根据条件分页查询用户列表(公共)
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    public List<CommonUser> selectCommonUserList(CommonUser user) {
        return userMapper.selectCommonUserList(user);
    }

    /**
     * 根据条件分页查询已分配用户角色列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectAllocatedList(SysUser user) {
        return userMapper.selectAllocatedList(user);
    }

    /**
     * 根据条件分页查询未分配用户角色列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectUnallocatedList(SysUser user) {
        return userMapper.selectUnallocatedList(user);
    }

    /**
     * 通过用户名查询用户
     *
     * @param userName 用户名
     * @return 用户对象信息
     */
    @Override
    public SysUser selectUserByUserName(String userName) {
        return userMapper.selectUserByUserName(userName);
    }

    /**
     * 通过用户ID查询用户
     *
     * @param userId 用户ID
     * @return 用户对象信息
     */
    @Override
    public SysUser selectUserById(Long userId) {
        return userMapper.selectUserById(userId);
    }

    /**
     * 查询用户所属角色组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserRoleGroup(String userName) {
        List<SysRole> list = roleMapper.selectRolesByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysRole::getRoleName).collect(Collectors.joining(","));
    }

    /**
     * 查询用户所属岗位组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserPostGroup(String userName) {
        List<SysPost> list = postMapper.selectPostsByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysPost::getPostName).collect(Collectors.joining(","));
    }

    /**
     * 校验用户名称是否唯一
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public boolean checkUserNameUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkUserNameUnique(user.getUserName());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验手机号码是否唯一
     *
     * @param user 用户信息
     * @return
     */
    @Override
    public boolean checkPhoneUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkPhoneUnique(user.getPhonenumber());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验email是否唯一
     *
     * @param user 用户信息
     * @return
     */
    @Override
    public boolean checkEmailUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkEmailUnique(user.getEmail());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验用户是否允许操作
     *
     * @param user 用户信息
     */
    @Override
    public void checkUserAllowed(SysUser user) {
        if (StringUtils.isNotNull(user.getUserId()) && user.isAdmin()) {
            throw new ServiceException("不允许操作超级管理员用户");
        }
    }

    /**
     * 校验用户是否有数据权限
     *
     * @param userId 用户id
     */
    @Override
    public void checkUserDataScope(Long userId) {
        if (!SysUser.isAdmin(SecurityUtils.getUserId())) {
            SysUser user = new SysUser();
            user.setUserId(userId);
            List<SysUser> users = SpringUtils.getAopProxy(this).selectUserList(user);
            if (StringUtils.isEmpty(users)) {
                throw new ServiceException("没有权限访问用户数据！");
            }
        }
    }

    /**
     * 新增保存用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int insertUser(SysUser user) {
        // 新增用户信息
        int rows = userMapper.insertUser(user);
        // 新增用户岗位关联
        insertUserPost(user);
        // 新增用户与角色管理
        insertUserRole(user);
        // 推送数据
        sysAppService.pushDataIncr(PushDataType.USER, PushEvent.ADD, String.valueOf(user.getUserId()), user);
        return rows;
    }

    /**
     * 注册用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean registerUser(SysUser user) {
        int i = userMapper.insertUser(user);
        // 推送数据
        sysAppService.pushDataIncr(PushDataType.USER, PushEvent.ADD, String.valueOf(user.getUserId()), user);
        return i > 0;
    }

    /**
     * 修改保存用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int updateUser(SysUser user) {
        Long userId = user.getUserId();
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 新增用户与角色管理
        insertUserRole(user);
        // 删除用户与岗位关联
        userPostMapper.deleteUserPostByUserId(userId);
        // 新增用户与岗位管理
        insertUserPost(user);
        // 推送数据
        sysAppService.pushDataIncr(PushDataType.USER, PushEvent.UPDATE, String.valueOf(user.getUserId()), user);
        return userMapper.updateUser(user);
    }

    /**
     * 用户授权角色
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void insertUserAuth(Long userId, Long[] roleIds) {
        userRoleMapper.deleteUserRoleByUserId(userId);
        insertUserRole(userId, roleIds);
    }

    /**
     * 修改用户状态
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int updateUserStatus(SysUser user) {
        int i = userMapper.updateUser(user);
        SysUser sysUser = userMapper.selectUserById(user.getUserId());
        // 推送数据
        if (sysUser != null) {
            sysAppService.pushDataIncr(PushDataType.USER, PushEvent.UPDATE, String.valueOf(sysUser.getUserId()), sysUser);
        }
        return i;
    }

    /**
     * 修改用户基本信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int updateUserProfile(SysUser user) {
        int i = userMapper.updateUser(user);
        SysUser sysUser = userMapper.selectUserById(user.getUserId());
        // 推送数据
        if (sysUser != null) {
            sysAppService.pushDataIncr(PushDataType.USER, PushEvent.UPDATE, String.valueOf(sysUser.getUserId()), sysUser);
        }
        return i;
    }

    /**
     * 修改用户头像
     *
     * @param userName 用户名
     * @param avatar   头像地址
     * @return 结果
     */
    @Override
    public boolean updateUserAvatar(String userName, String avatar) {
        return userMapper.updateUserAvatar(userName, avatar) > 0;
    }

    /**
     * 重置用户密码
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public int resetPwd(SysUser user) {
        return userMapper.updateUser(user);
    }

    /**
     * 重置用户密码
     *
     * @param userName 用户名
     * @param password 密码
     * @return 结果
     */
    @Override
    public int resetUserPwd(String userName, String password) {
        return userMapper.resetUserPwd(userName, password);
    }

    /**
     * 新增用户角色信息
     *
     * @param user 用户对象
     */
    public void insertUserRole(SysUser user) {
        this.insertUserRole(user.getUserId(), user.getRoleIds());
    }

    /**
     * 新增用户岗位信息
     *
     * @param user 用户对象
     */
    public void insertUserPost(SysUser user) {
        Long[] posts = user.getPostIds();
        if (StringUtils.isNotEmpty(posts)) {
            // 新增用户与岗位管理
            List<SysUserPost> list = new ArrayList<SysUserPost>();
            for (Long postId : posts) {
                SysUserPost up = new SysUserPost();
                up.setUserId(user.getUserId());
                up.setPostId(postId);
                list.add(up);
            }
            userPostMapper.batchUserPost(list);
        }
    }

    /**
     * 新增用户角色信息
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    public void insertUserRole(Long userId, Long[] roleIds) {
        if (StringUtils.isNotEmpty(roleIds)) {
            // 新增用户与角色管理
            List<SysUserRole> list = new ArrayList<SysUserRole>();
            for (Long roleId : roleIds) {
                SysUserRole ur = new SysUserRole();
                ur.setUserId(userId);
                ur.setRoleId(roleId);
                list.add(ur);
            }
            userRoleMapper.batchUserRole(list);
        }
    }

    /**
     * 通过用户ID删除用户
     *
     * @param userId 用户ID
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int deleteUserById(Long userId) {
        SysUser user = userMapper.selectUserById(userId);
        if (user == null) {
            throw new ServiceException("无效的userId");
        }
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 删除用户与岗位表
        userPostMapper.deleteUserPostByUserId(userId);
        // 推送数据
        sysAppService.pushDataIncr(PushDataType.USER, PushEvent.DELETE, String.valueOf(user.getUserId()), user);
        return userMapper.deleteUserById(userId);
    }

    /**
     * 批量删除用户信息
     *
     * @param userIds 需要删除的用户ID
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public int deleteUserByIds(Long[] userIds) {
        for (Long userId : userIds) {
            checkUserAllowed(new SysUser(userId));
            checkUserDataScope(userId);

            // 推送数据
            SysUser user = userMapper.selectUserById(userId);
            if (user != null) {
                sysAppService.pushDataIncr(PushDataType.USER, PushEvent.DELETE, String.valueOf(user.getUserId()), user);
            }
        }
        // 删除用户与角色关联
        userRoleMapper.deleteUserRole(userIds);
        // 删除用户与岗位关联
        userPostMapper.deleteUserPost(userIds);
        return userMapper.deleteUserByIds(userIds);
    }

    /**
     * 导入用户数据
     *
     * @param userList        用户数据列表
     * @param isUpdateSupport 是否更新支持，如果已存在，则进行更新数据
     * @param operName        操作用户
     * @return 结果
     */
    @Override
    public String importUser(List<SysUser> userList, Boolean isUpdateSupport, String operName) {
        if (StringUtils.isNull(userList) || userList.size() == 0) {
            throw new ServiceException("导入用户数据不能为空！");
        }
        int successNum = 0;
        int failureNum = 0;
        StringBuilder successMsg = new StringBuilder();
        StringBuilder failureMsg = new StringBuilder();
        String password = configService.selectConfigByKey("sys.user.initPassword");
        for (SysUser user : userList) {
            try {
                // 验证是否存在这个用户
                SysUser u = userMapper.selectUserByUserName(user.getUserName());
                if (StringUtils.isNull(u)) {
                    BeanValidators.validateWithException(validator, user);
                    user.setPassword(SecurityUtils.encryptPassword(password));
                    user.setCreateBy(operName);
                    this.insertUser(user);
                    successNum++;
                    successMsg.append("<br/>" + successNum + "、账号 " + user.getUserName() + " 导入成功");
                } else if (isUpdateSupport) {
                    BeanValidators.validateWithException(validator, user);
                    checkUserAllowed(user);
                    checkUserDataScope(user.getUserId());
                    user.setUpdateBy(operName);
                    this.updateUser(user);
                    successNum++;
                    successMsg.append("<br/>" + successNum + "、账号 " + user.getUserName() + " 更新成功");
                } else {
                    failureNum++;
                    failureMsg.append("<br/>" + failureNum + "、账号 " + user.getUserName() + " 已存在");
                }
            } catch (Exception e) {
                failureNum++;
                String msg = "<br/>" + failureNum + "、账号 " + user.getUserName() + " 导入失败：";
                failureMsg.append(msg + e.getMessage());
                log.error(msg, e);
            }
        }
        if (failureNum > 0) {
            failureMsg.insert(0, "很抱歉，导入失败！共 " + failureNum + " 条数据格式不正确，错误如下：");
            throw new ServiceException(failureMsg.toString());
        } else {
            successMsg.insert(0, "恭喜您，数据已全部导入成功！共 " + successNum + " 条，数据如下：");
        }
        return successMsg.toString();
    }

    @Override
    public List<Node> getUserTree() {
        List<Node> deptNodes = deptMapper.selectDeptNodeList();
        List<Node> userNodes = userMapper.selectUserNodeList();
        // 转换成map
        Map<String, Node> deptMap = deptNodes.stream().collect(Collectors.toMap(Node::getId, Node -> Node));
        Map<String, Node> userMap = userNodes.stream().collect(Collectors.toMap(Node::getId, Node -> Node));
        // 转换为tree
        List<Node> resultList = convertTree(deptMap, userMap, null);
        return resultList;
    }

    @Override
    public LoginUser getUserLoginInfo(String username) {
        SysUser sysUser = this.selectUserByUserName(username);
        if (StringUtils.isNull(sysUser)) {
            throw new ServiceException("用户名或密码错误");
        }
        // 角色集合
        Set<String> roles = permissionService.getRolePermission(sysUser);
        // 权限集合
        Set<String> permissions = permissionService.getMenuPermission(sysUser);
        LoginUser sysUserVo = new LoginUser();
        sysUserVo.setSysUser(sysUser);
        sysUserVo.setRoles(roles);
        sysUserVo.setPermissions(permissions);
        return sysUserVo;
    }


    /**
     * 将组织机构转换成tree
     * @param deptMap
     * @param parent
     * @return
     */
    private List<Node> convertTree(Map<String, Node> deptMap, Map<String, Node> userMap, Node parent) {
        List<Node> list = new ArrayList<>();
        Iterator<Node> iterator = deptMap.values().iterator();
        while (iterator.hasNext()) {
            Node item = iterator.next();
            if(item != null) {
                if(parent == null) {
                    if(item.getParentId() == null || "0".equals(item.getParentId())) {
                        item.setType(Node.Type.dept);
                        list.add(item);
                        iterator.remove();
                    }
                } else {
                    if(parent.getId().equals(item.getParentId())) {
                        item.setType(Node.Type.dept);
                        list.add(item);
                        iterator.remove();
                    }
                }
            }
        }

        // 转换用户节点
        this.convertUserNode(parent, list, userMap);

        // 获取子节点
        if(!CollectionUtils.isEmpty(list)) {
            list.forEach(item -> {
                if(Node.Type.dept.equals(item.getType())) {
                    List<Node> children = this.convertTree(deptMap, userMap, item);
                    item.setChildren(children);
                }
            });
        }

        return list;
    }

    /**
     * 转换用户节点
     * @param parent
     * @param list
     * @param userMap
     */
    private void convertUserNode(Node parent, List<Node> list, Map<String, Node> userMap) {
        Iterator<Node> iterator = userMap.values().iterator();
        while (iterator.hasNext()) {
            Node item = iterator.next();
            if(item != null) {
                if(parent == null) {
                    if(StringUtils.isBlank(item.getParentId())) {
                        item.setType(Node.Type.user);
                        list.add(item);
                        iterator.remove();
                    }
                } else {
                    if(parent.getId().equals(item.getParentId())) {
                        item.setType(Node.Type.user);
                        list.add(item);
                        iterator.remove();
                    }
                }
            }
        }
    }
}
